Line-spacing mechanism for type-writing machines.



0. PETERMANN. HANISM FOR TYPE WRITING MACHINES.

APPLICATION FILED JUN 12, 1909. 7 1,121,031, Patented Dec.15,191

2 SHEETS-SHEET 1.

LINE SPAGING MEG ATTORNEYS v 0. PETERMANN. LINE SPAGING MECHANISM FOR TYPE WRITING MACHINES.

APPLICATION FILED JUNE 12,-1909. Patented Dec. 1

INVENTOR C LO/11 ATTORNEYS 2 anus-inn 2.

O t CO @eTe M lmmuw UNITED STATES-PATENT OFFICE.

OTTO PETERMANN, or New YORK, N. Y., Assmivon. BY MESNE ASSIGNMENTS, T CORONA TYPEWRITER COMPANY, INCORPORATED, A conro'ne'rron on NEW YORK.

LINE-SPACING MECHANISM FOR TYPE-'WRITING MACHINES.

Be it known that I, OTTo PETERMAXN, a citizen of the Republic of Switzerland, and a resident of Yew York, county and State of New York, have invented certain new and useful Improvements in Line-Spacing Mechanism for Type-\Vriting Machines, of

to space the same for one or more lines, and

to provide means which w-ill,properly hold the platen when moved so that the spacing between all of the lines will be equal.

Other objects of the invention are to provide simple means whereby substantially the entire surface of the platen may be utilized; and to provide simple means serving as a stop and lock for the platen When moved.

A further object of the invention is to provide simple and efiicient means for releasing'the platen so that the same may be manually and freely moved in either. direction.

I Vith these and other objects in view, the invention will be hereinafter more particularly described with reference to the accompanying drawings, which form a part of this specification, and will then be pointed out in the claims at the end of-the de-' scription.

In the drawings, Figure 1 is a side elevation of one form ofmachine embodying my invention. Fig. 2 is an enlarged transverse section through .the carrier taken on thenline IIII of Fig. Fig. 3 is a fragmentary sectional view, showing the stop for the line-spacing mechanism which may be frictionally held to the frame indifferent positions. Fig. 4 is a plan view of the carrier and platen detached, showing the line-spacing'mechanism; and Fig. 5 is a fragmentary rear elevation of one end of the platen and carriage.

The machine shown and hereinafter set forth is of the type disclosed in the patent to Frank S. Rose, No'. 754,242, patented March 8th, 1904, in which the carriage is Specification of Letters Patent.

Patented Dee 15, 1914.

Application filed June 12, 1909. Serial No. 501,851.

adapted to befolded over above the keys,

'and while in the present invention thecarriage and platen and their operating mech anism are adapted to be raised and lowered on the frame of the machine and to be folded over above the keyboard. and in which the type have a front strike for visible writing,

itis to be understood that the features of this invention may be used in connection with other classes of machines.

The frame 10 may be of any suitable construction,;and mounted above the frame 10 is a support 11, which'is adapted to be moved verticallv to permit the type-heads to have a plurality of characters thereon, and said support is pivotally held so as to adapt the same to be folded over above the keyboard.

A carriage 12 is held to move upon the support 11, and this carriage has suitable mechanism for operating the same and is provided with a frame" 13 in which a platen wheel 1am held to move with the platen,

said platen having the usual hand-operating means or disks 16 located at the opposite ends of the shaft 17 to adapt the platen to be rotated independently of'the line-spacing mechanism. The carriage frame is provided with an outwardly-extending fixed gripping or finger part 18 from which pro-v ects brackets or lugs 19 and 20. A lever I 21 is pivotally held to the brackets 19 and 20 and said lever has an upwardly-extending part 22 serving as a finger portion therefor, said lever being opposed to the fixed gripping part 18 and having a pivotal movement in the direction of travel of the carriage. A bolt 23 extends trans- .versely through the brackets 19 and 20 above theplate'n shaft 17 and is fixed to said brackets, and said bolt serves as a pivot for the lever 21. The lever 21 has an arm 24 located adjacent tothe bracket 19 and normally abuts against the inner side of said bracket to permit the lever to slide or move laterally of the platen and lengthwise of the bolt 23, and arranged around said bolt23 the bolt 23,also passes, and said arm is 10-. the bracket 20 topermlt the" lever to havea movement-.lengtheate'd o'n the outside-of wise of the bolt 23. The arm 26 has an engaging end forming a fixedtooth or pawl 27so that when the lever 21 is forced toward the fixed part 18 of the carriage frame by grasping the finger parts, tlie said lever 21 will have a lateral and downward movement and will engage the teeth of the ratchet wheel 15 to rotate the platen and the work sheet carried thereby, at the same time permitting the carriage to be moved toward the starting po nt against the action of the usual power mechanism.

A stop or lever 28 is pivoted to the carriage on the outside thereof and is p'rovided with a plurality of notches or'abutments 29 and 30. The lever 21 in its downward movement' will strike either of the notches 29 and 30 of the stop lever 28 to limit the movement of said lever 21. If the stop lever 28 is moved to a position to cause the lever 21 to engage the notch 30,: the platen will beretated a certain distance only, and if said lever 28 is moved so that the notch 29 is. engaged .by the lever 21 the platen will be given a greater throw, thus varying the movement of the platen for line spacing. By reason of the nature of the notches or engagingparts of the stop lever 28 and the engaging part or arm 26 of the lever 21, the

platen will be positively locked and revented from moving more than it shou d when operated rapidly; said locking lever 28 being provided with a depressed or other part 31 which engages recesses32-in the carnage frame and holds said-lever 28 in either position.

The teeth of the platen ratchet wheel 15 are engaged by a roll 33, and this roll is car; ried by a pivoted lever, arm or'member 34, Fig. 2, which is normally forced in one direction by a spring 35. The upper end 36 of the lever is substantially U-shaped and is adapted to be engaged by the arm 37 of a pivoted lever or member 38 so as to hold the roll out of engagement with the ratchet wheel 15 when it is'desired to rotate the platen independently. The teeth of the ratchet wheel 15 are large enough to be engaged by the pawl or dog 27 and still are small enough to permit the platen to be shifted independently of its operating mechanism and be again engaged by the pawl to' bring a new part of the platen in osition for the type to strike against in or er that substantially the entire surface of the platen may be utilized. a

- for adjusting t versely thereof From the foregoing it will be seen that simple and efficient means are provided for moving'the platen for line spacing and for locking the same; that said mechanism may be quickly operated to adapt the platento be moved one or more spaces at a time; and that simple means are provided whereby the laten may be released to adapt the same to moved freely and-manually in either di- 1 rection.

Having thus described my invention, I laimas new and desire to secure-by Letters 1 Patent 1. In a typewriting machine,the combination with, arotary platen provided with a toothed wheel of a manually operating pivoted lever havm a fixed pawl adapted to engage said toot ed wheel and rotate the platen, said lever having a bodily movement sidewise of its e throw of said pawl to regulate the movement of theplaten.

2. In a typewriting machine, the combina- }pivotal movement, and means tion of acarriage, a platen mounted thereon, I

a ratchet wheel held to move withthe platen, and a pawl-carrying finger lever having a pivotal movement in the direction of travel of the carriage and a bodily movement transand adaptedto engage the ratchet wheel and rotate the platen.

3. In a typewritingmachine, the combination of a carriage, a platen mounted thereon,

a fin'ger lever carrying a pawl and having a pivotal movement in the direction of travel of the carriage and a sliding bodily movement transversely thereof and in a rearward direction, a ratchet wheel held to move with the laten and adapted to be engaged by the paw anda movable stop adapted to engage a part of thelever to regulate the movement of said platen.

' 4:. In a typewriting machine, the combination with a rotary platen provided with a toothed wheel, of a manually operated piv-' oted lever. carrying arpawl and having a bodily movement sidewise and along its pivotin means and adapted to engage. said tooth wheel to adjust the platen, and a 100 leverhaving abutments adapted to be move into position in :the path of movement of said lever to regulate its throwinronnection with jthe toothed wheel for line spacing.

5. In a typewriting machine, the combination of a carriage. a platen mounted thereon, a supporting shaft for said platen, a ratchet wheel held to move with the platen, and a pivoted finger lever mounted independently of the platen shaft and having a' bodily movement sidewiseof its pivotal movement for operating said ratchet wheel and rotatingthe platen. 4

6. Ina typewriting machine, the combination of acarriage, a platen mounted thereon, v

finger lever pivotally mounted at one side of the platen shaft and having a bodily movement sidewise of its pivotal movement and carrying a pawl to engage said ratchet wheel and rotate the platen.

7. In a typewriting machine the combination of a carriage, a platen mounted thereon, a supporting shaft for the platen, a ratchet wheel held to move with the platen, and a finger lever pivotally mounted at one side of the platen shaft and having a swinging movement and a bodily sliding movement sidewise of its swinging movement to adapt the lever to move toward and around the ratchet wheel, and a pawl adapted to engage said ratchet wheel and rotate the plate 8. In a typewriting machine, the combination with a carriage having a finger part fixedly mounted thereon, of a rotary platen provided with a toothed wheel, a manually operated lever carrying a-pawl and provided with a finger part and adapted to engage said toothed wheel. and rotate the platen, and a lever for adjusting the throw of said pawl to regulate the movement of the platen. a

9. In a typewriting machine, the combination with a movable carriage provided with recesses, of a platen mounted thereon, a ratchet wheel held to the platen, a pivotally mounted lever carrying a pawl adaptedto engage the ratchet wheel and having a movement sidewise of its pivotal movement,

pivotally held lever stop having abutments adapted to vary the throw of the lever according to the position of said stop,-and provided with a depressed portion adapted to engage the recesses in the carriage.

10. In a typew'riting machine, the combination of a carriage, a platen mounted there on, a ratchet wheel held to move with the platen, a fixed gripping part extending upwardly atone end of the carriage, a manu ally operated and pivoted lever in line with and directly opposed to the fixed gripping part and a pawl carried by the lever adapted to engage'the ratchet wheel for imparting a. rotary movement to the platen.

11. In atypewriting machlne, the combination of a support, a carriage adapted to travel along said support, a platen mounted on the carriage and provided with a shaft, a ratchet wheel held to move with the platen, a fixed gripping part, brackets extending outwardly from said part, a bolt held to said brackets, a lever having a finger portion and provided with arms of relatively ditferent lengths adapted to be pivotally andslidably held on said bolt, a spring arranged aroun the bolt and having one end abutting against one of the brackets and the other end against one of the lever arms tending normally to force the lever in one direction, and a pawl carried by said lever adapted to engage the teeth of the ratchet wheel to operate the' fixed gripping part, said lever being pivotally and slidably held on said bolt and having means to engage the ratchet wheel and rotate the platen. 1

13. In a typewriting machine, the combination of a support, acarriage adapted to travel along said support, a platen mounted on the carriage and provided with a shaft, a ratchet wheel held to move with the platen, a fixed gripping part extending upwardly from one end of the carriage, brackets ex tending outwardly from the carriage, a bolt extending transversely of the platen and held to said brackets, a lever having a finger portion and provided with arms and pivotally and slidably held on said bolt, means movable with the lever adapted to engage.

the ratchet wheel and rotate the platen, and

means for limiting the movement of said lever. i 14. In a typewriting machine, the combination of a support, a carriage adapted to travel along said support, a platen mounted on thecarriage, a fixed gripping part 'extendingupwardly from one end of the carriage, brackets extending outwardly from said part,"a bolt extending transverselyof the platen and held to said brackets, a lever having a finger portion and provided with arms of relatively different lengths and pivotally and slidably held on said bolt, a spring arranged around the bolt and having one end abutting against one of the brackets and the other end against one of the lever arms tending normally to force the leverin one direction, means operated by the lever to rotate the platen, and means for limiting the movement of said. lever.

15. In a typewriting machine, the combination of a support, a carriage adapted to travel along said support, a platen mounted on the carriage, a ratchet wheel held to move with the platen, a bolt extending transversely of the platen and held'to parts projecting outwardly from one end of the carriage, a movable lever having a finger portion and provided with arms of relatively different lengths adapted to be pivotally and d slidably held on said bolt, a spring arranged around the bolt and having one end abutting against one of thebrackets and the other end againstone of the lever arms tending normally to force the lever in'one direction, and a pawl fixed to said lever adapted to engage the teeth of the ratchet Wheel to Operate the same and during such engagemm having a lateral anddownward moye ment.

V 16. In'a typewi'itin'gmachine, the combi-- nation of a carriage, a'fplaten mounted on the carriage a ratchet wheel held to move with thep aten, 'meansfor rotating the ratchet wheel and ranged and pi'qot'e am having" an open U-shaped' space at its upper end, a roll forming a detent held in said space and adapted to engage the teeth of the ratchet Wheel, a spring normally forcing the. arm in one laten, a; vertically ar direction, and an independentpivotally held member having an arm adapted to enter the 15 space adjacent to the roll to release the same from engagement with the ratchet wheel to ermit the platen to-be manually operated reely in either direction.

This specification signed and witnessed 20 this 4th day of June A. D. 1909.

OTTO PETERMANN} Witnesses: Y W. A. TOWNER', Jr,, I C. BABTELS. 

